CBS | 9:00 pm

"Law & Order" franchise alum Tovah Feldshuh guest stars as the U.S. president in the new episode "Coup de Grace." The title has a dual meaning, since Grace (Jennifer Finnigan) is determined — along with Darius (Santiago Cabrera) — to get answers from the chief executive. Harris (Ian Anthony Dale) learns certain things that could prove lethal. Autumn Reeser and John Noble also guest star. Charlie Rowe and Jacqueline Byers also star.